Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 449, Issue 2, Pages 1996-2009Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stv403
Keywords
accretion, accretion discs; protoplanetary discs; binaries: general; stars: individual: RW Aurigae; stars: variables: T Tauri, Herbig Ae/Be; submillimetre: stars
Categories
Funding
- BIS National E-infrastructure capital grant [ST/K001590/1]
- STFC capital grants [ST/H008861/1, ST/H00887X/1]
- DiRAC Operations grant [ST/K00333X/1]
- STFC/Isaac Newton Trust studentship
- DISCSIM project - European Research Council under ERC-ADG
- Science and Technology Facilities Council [ST/M007065/1, ST/M00418X/1, ST/K001590/1, ST/H008861/1, ST/H00887X/1, ST/K00333X/1, ST/K000985/1, 1233330] Funding Source: researchfish
- STFC [ST/H008861/1, ST/M00418X/1, ST/K00333X/1, ST/K000985/1, ST/H00887X/1, ST/K001590/1, ST/M007065/1] Funding Source: UKRI
Ask authors/readers for more resources
RW Aurigae (RW Aur) is a binary star system with a long molecular arm trailing the primary star. Cabrit et al. noted the resemblance between this extended structure and the tidal arm stripped from the primary star in the simulations of star-disc encounters by Clarke & Pringle. In this paper, we use new hydrodynamical models and synthetic observations to fit many of the parameters of RW Aur. Using hydrodynamic models, we find that the morphological appearance of RW Aur can be indeed explained by a tidal encounter with the secondary star. We reproduce all the major morphological and kinematic features of the system. Using radiative transfer calculations, we find that synthetic CO and dust continuum observations of our hydrodynamic models agree well with observations. We reproduce all the main features of the line profiles, from emission fluxes to the optical depth of the different components of the system. The agreement between observations and simulations thus lends strong support to the hypothesis of a tidal encounter scenario. Finally, we propose a possible solution for the origin of the dimming of the primary star observed in 2010/2011 by Rodriguez et al.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available